Bitcoin mining company Marathon Digital is looking to partner with blockchain developers to build a Bitcoin L2 cross-border transfer solution. Julian Duran, the company's head of sidechain products, revealed this at the Bitcoin 2024 conference on July 26. Duran said cross-border transfers are "the biggest use case for blockchain, and Bitcoin in particular," noting that in emerging markets, the average cost of sending money abroad is between 8 and 10 percent of the transaction value.